N.J. Stat. § 40:46-52
The qualified voters of any municipality may adopt this act at any regular municipal or general election or at any election at which they vote on the adoption of any of the optional forms of government provided by the Optional Municipal Charter Law.
Upon recommendation of a charter commission constituted pursuant to the Optional Municipal Charter Law or upon petition in writing of ten per centum (10%) of the registered voters of a municipality filed with the municipal clerk, the clerk shall submit the question to the voters. If there is an election pending on the adoption of one of the said optional forms of government not less than sixty days after the filing of the petition or recommendation of the charter commission, the clerk shall submit the question at said election. If no such election of an optional form of government is pending the clerk shall submit the question of the adoption of this act at the next regular municipal or general election to be held not less than sixty days after the filing of the petition or the recommendation of the charter commission. In any case he shall give public notice of the submission of the question by publication in one or more newspapers published in the municipality, if there be one published in the municipality; if not, then in one or more newspapers published in the county in which the municipality is located, to be designated by the clerk, once a week for at least four weeks, and by posting such notice in five of the most public places in the municipality for at least four weeks before the election. The question of adoption of this act shall be submitted as other public questions, and shall be stated as follows: Shall the Optional Municipal Key Positions Act be adopted by (insert name of municipality)?
N.J.S. § 40:46-52